EP0325666A1 - Goulotte hélicoidale, en particulier dans des tuyaux de mine - Google Patents
Goulotte hélicoidale, en particulier dans des tuyaux de mine Download PDFInfo
- Publication number
- EP0325666A1 EP0325666A1 EP88101115A EP88101115A EP0325666A1 EP 0325666 A1 EP0325666 A1 EP 0325666A1 EP 88101115 A EP88101115 A EP 88101115A EP 88101115 A EP88101115 A EP 88101115A EP 0325666 A1 EP0325666 A1 EP 0325666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vulcanized
- plates
- wear
- plate
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005065 mining Methods 0.000 title abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 20
- 239000011707 mineral Substances 0.000 claims abstract description 20
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000004636 vulcanized rubber Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 239000003245 coal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/16—Interior surfaces; Linings
- B65G11/166—Interior surfaces; Linings for bulk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/06—Chutes of helical or spiral form
- B65G11/066—Chutes of helical or spiral form for bulk
Definitions
- the invention relates to a spiral formation, in particular in mountain pipes of 500 mm in diameter, which consist of individual steel tube sections, with wear-resistant linings which are fastened to the steel tube without a bottom plate.
- spiral slides are mainly used for the transport of mountains (rock that is also co-extracted with coal) and coal from a higher to a lower level.
- a special application example is underground coal mining for the transport from a higher level to a lower level or from above ground to an underground level. It is also used for coal washes above ground.
- the spiral is inserted into a tube.
- the pipe is generally divided into sections of 1500 mm in length.
- the spiral slide is designed, for example, as in patent P 29 23 945.0.
- the guide spiral is designed without a bottom plate.
- These chilled cast iron support plates are attached to the steel tube by means of screws. They are inserted from the pipe axis through the helical support plates. The screw heads are more or less flush with the stressed surface of the wear protection pads. They are also in the range of the flow and are therefore subject to high wear and tear. A complete consumption of the Wear protection pads are not possible because the screw needs a corresponding abutment on the metal pad in its conical area.
- the wear protection support plates are cut right-angled, both for spirals with a shear plate and for the self-supporting spirals, i.e. at 90 ° to the spiral inclination.
- the joint between the individual panels is therefore not horizontal. This means that at one end of the pipe section the end fitting protrudes in a triangular shape over the pipe flange; at the other end of the pipe, a corresponding recess is provided in the wear protection pads in the spiral.
- These protruding corner parts have proven to be very cumbersome when transporting the lined pipe sections.
- the wear protection pads on the flange connections must be replaced. Otherwise the pipe section cannot be removed from the strand.
- the object of the invention is to make mineral wear protection plates more suitable for tougher stresses, in particular also for impact stresses, and to avoid any weakening of the plate due to its shape and fastening technology.
- the wear-resistant linings are designed as non-impact-resistant but highly wear-resistant mineral plates and spatially curved plate pieces that are vulcanized into rubber as support elements against the pipe wall.
- Such a spiral formation does not require floor panels.
- the vulcanized rubber molded parts are characterized in that connecting elements, in particular devices for holding hammer-head-like screws and threaded bolts with welded, plate-shaped disks as a connection to the steel jacket are vulcanized into the vulcanized rubber molded parts and are thus anchored in the latter.
- hard cast iron plates with vulcanized rubber molded parts of the type mentioned above can be attached to particularly impact-stressed areas of the helix.
- the plates are expediently vulcanized in so far in the case of plates which are strongly curved towards the inside of the mountain pipe that an approximately 10 mm thick rubber layer remains for the correction of the individual wear protection elements over the limitation of the fastening rail on the side of the mountain pipe.
- the plates which are directly adjacent to the tubular steel wall, in particular in parallel, have a rubber layer vulcanized onto them with a vulcanized screw shaft with a plate-shaped base.
- the mounting holes are therefore not cast into the plates, nor are they provided subsequently. No fasteners are attached directly to the panels. When the screws are tightened, the plates can never break.
- the plates are relatively elastically connected to the metal support structure (mountain pipe).
- a self-supporting spiral is formed, which is supported towards the pipe wall.
- a relatively stiff, practically vibration-free spiral is achieved.
- the spiral slide surface and this is another significant advantage, is designed to end horizontally flush with the pipe weft.
- a combination of mineral materials and cast metal plates will be used. Seen in the pipe cross-section, for example: a fitting made of chilled cast iron towards the pipe center, the other fittings can then be made of a mineral material. Impact stresses are known to occur primarily in the area of the pipe axis. A metallic fitting is more resistant to these impact loads than a mineral material.
- Ceramic materials such as aluminum oxide materials (Kalcor), molten corundum, zirconium or the like are used. Since the fittings no longer have any depressions, they can be used until their full thickness wears out.
- the vulcanized-in rail is introduced in such a way that at least 10 mm of rubber layer still remains above the fastening rail.
- the plate / molded rubber part can be attached to the steel jacket using a hammer-like screw, the head of which is held in the rubber part by means of the vulcanized rail.
- the curved plate is now about 10 mm away from the pipe jacket and is attached to the steel pipe by means of a vulcanized rubber layer with a screw shaft attached. If the segments consist of several fittings, the joints can be made at right angles to the surface of the panel, but also at an angle or at an angle.
- the hot vulcanization can be carried out in the molding box.
- the vulcanized rubber molded parts bring "a significant reduction in noise" compared to the metal-to-metal design.
- the total weight of the helix is lower than with previous helix construction. This leads to easier transport and assembly.
- the helix which ends horizontally with the pipe section, allows the sections to be replaced easily without removing and installing the wear protection plates, which is a considerable relief and, because of the shorter downtimes, is also cost-effective.
- the arrangement of the various fittings in the helix is such that the connection from the mineral wear protection plate to the steel tube is always guaranteed by the vulcanized rubber molded parts.
- the aforementioned thick joint results.
- This is filled with a rubber part to be vulcanized.
- the fastening is done by vulcanizing in a screw shaft itself.
- the screw shaft is welded to the plate-shaped steel plate. This results in an increase in the area to be vulcanized and thus a firm connection.
- the screw shafts are inserted through the holes provided in the jacket and fastened from the outside with a nut.
- Toothed washers / washers are arranged on the outside of the steel jacket.
- Holes with a larger diameter than that of the screw shafts are preferably arranged in the jacket, preferably as elongated holes following the course of the helix. This allows any corrections that may become necessary to adapt the wear protection elements to one another. Additional correction options are found in the strongly curved fitting in the area of the hammer head and the vulcanized rail.
- the molded rubber parts are stabilized by vulcanized-in webs or a reinforcement of webs inlaid in web form.
- Mineral wear protection pads 2 are fastened to the steel fall pipe (support structure) 1, which is designed as a support for the helix. Because of the expected high impact stresses in the section of the helix lying towards the center, molded pieces 3 made of tough cast iron can be used there.
- the strongly twisted, inwardly curved plate is fastened to the steel tube by means of a molded rubber part 4. This can be done using a hammer head-like screw 7. The screw head is held in the rubber part by means of a rail 6.
- the curved plate 2, which is in the normal range, in particular curved parallel to the inner tube shell, is attached to the steel tube by means of a vulcanized rubber layer by means of a screw shaft 8. If the segments consist of several fittings, the joints can be made at right angles to the surface of the panel or at an angle or at an angle.
- the plate 3 which is made of tough cast iron and lies in the helix, to which the rubber 4 is vulcanized, into which the rail 6, which does not hold the screw head, is deeply vulcanized. Mineral materials can then be used in the area of the plate 2.
- Fig. 3 shows a vertical section, the top of the plates 2 with the part strongly curved downwards towards the pipe axis and "Mineral materials” are mineral casting or sintered materials (trademark “Kalcor” from Schmelzbasaltwerk Kalenborn), in particular made of aluminum oxide, zirconium oxide, and optionally also melt basalt.
- the "hard cast materials” are iron cast materials.
Landscapes
- Chutes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP88101115A EP0325666A1 (fr) | 1988-01-26 | 1988-01-26 | Goulotte hélicoidale, en particulier dans des tuyaux de mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP88101115A EP0325666A1 (fr) | 1988-01-26 | 1988-01-26 | Goulotte hélicoidale, en particulier dans des tuyaux de mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0325666A1 true EP0325666A1 (fr) | 1989-08-02 |
Family
ID=8198676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88101115A Withdrawn EP0325666A1 (fr) | 1988-01-26 | 1988-01-26 | Goulotte hélicoidale, en particulier dans des tuyaux de mine |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0325666A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007048874A1 (fr) * | 2005-10-24 | 2007-05-03 | Metso Minerals, Inc. | Élément de relevage composite d'un broyeur |
| WO2009050723A1 (fr) | 2007-10-18 | 2009-04-23 | Tega Industries Limited | Blindage de broyeur revêtu d'acier composite |
| CN102390702A (zh) * | 2011-10-26 | 2012-03-28 | 刘涛 | 组合式抗冲击弹性耐磨衬板 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2061554A1 (de) * | 1969-12-16 | 1971-07-15 | Trelleborgs Gummifabnks Aktiebolag, Trelleborg (Schweden) | Verschleißschutzkorper aus Hartmetall oder keramischem Material in Kombination mit einer Elastschicht |
| DE3103315A1 (de) * | 1979-09-07 | 1982-08-12 | Bergwerksverband Gmbh, 4300 Essen | "wendelrutsche" |
| DE3103316A1 (de) * | 1979-09-07 | 1982-08-12 | Bergwerksverband Gmbh, 4300 Essen | Blindschachtwendelrutsche |
| US4367255A (en) * | 1982-04-26 | 1983-01-04 | Baker International Corporation | Lining sheet |
| DE2923945C2 (de) * | 1979-06-13 | 1985-02-28 | Schmelzbasaltwerk Kalenborn - Dr.-Ing. Mauritz KG, 5461 Vettelschoß | Hartgußplatten, insbesondere für die Spiralrutsche eines Bergefallrohres |
-
1988
- 1988-01-26 EP EP88101115A patent/EP0325666A1/fr not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2061554A1 (de) * | 1969-12-16 | 1971-07-15 | Trelleborgs Gummifabnks Aktiebolag, Trelleborg (Schweden) | Verschleißschutzkorper aus Hartmetall oder keramischem Material in Kombination mit einer Elastschicht |
| DE2923945C2 (de) * | 1979-06-13 | 1985-02-28 | Schmelzbasaltwerk Kalenborn - Dr.-Ing. Mauritz KG, 5461 Vettelschoß | Hartgußplatten, insbesondere für die Spiralrutsche eines Bergefallrohres |
| DE3103315A1 (de) * | 1979-09-07 | 1982-08-12 | Bergwerksverband Gmbh, 4300 Essen | "wendelrutsche" |
| DE3103316A1 (de) * | 1979-09-07 | 1982-08-12 | Bergwerksverband Gmbh, 4300 Essen | Blindschachtwendelrutsche |
| US4367255A (en) * | 1982-04-26 | 1983-01-04 | Baker International Corporation | Lining sheet |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007048874A1 (fr) * | 2005-10-24 | 2007-05-03 | Metso Minerals, Inc. | Élément de relevage composite d'un broyeur |
| US7887000B2 (en) | 2005-10-24 | 2011-02-15 | Metso Minerals, Inc. | Composite lifting element of a grinding mill |
| WO2009050723A1 (fr) | 2007-10-18 | 2009-04-23 | Tega Industries Limited | Blindage de broyeur revêtu d'acier composite |
| CN101827655B (zh) * | 2007-10-18 | 2012-11-21 | 泰加工业有限公司 | 复合覆钢磨机衬里及其制造方法 |
| AU2008313233B2 (en) * | 2007-10-18 | 2013-01-24 | Tega Industries Limited | Composite steel claded mill liner |
| EA017518B1 (ru) * | 2007-10-18 | 2013-01-30 | Тега Индастриз Лимитед | Мельница с составной футеровкой и способ изготовления составной футеровки |
| AP3014A (en) * | 2007-10-18 | 2014-10-31 | Tega Ind Ltd | Composite steel claded mill liner |
| CN102390702A (zh) * | 2011-10-26 | 2012-03-28 | 刘涛 | 组合式抗冲击弹性耐磨衬板 |
| CN102390702B (zh) * | 2011-10-26 | 2013-03-27 | 刘涛 | 组合式抗冲击弹性耐磨衬板 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
| 17P | Request for examination filed |
Effective date: 19890913 |
|
| 17Q | First examination report despatched |
Effective date: 19910426 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19920610 |